Belt-stapling machine.



A. VANDERVELD.

BELT STAPLING MACHINE.

APPUcATmN min JULY 26,1916.

Patented Sept. 4, 1917.

SHEETS-SHEET 1.

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/H//e/v /U VANUERVELD.

BELT STAPLING MACHINE. APPLICATION FILED JULY 2s. 191e.

Patentediept. 1, 1917.

5 SHEETS- SHEET 2.

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BELT STAPLING MACHINE. APPLICATION FILED 1uLY26, 1916.

PaentedSept. 4, 1917.

5 SHEETS-SHEET 3.

A. VANDERVELD.

BELT STAPLING MACHINE.

APPLICATION FILED IuLY 26. 1916.

Lz., Patemed Sem. 4,1917'.

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HIIIIIIIHIIHH HillIlIlIH/lllllllliiHH!IIIIIIIHIIIIIWIIII `"'''HHHLHHHIHIHIHlo l o a s 5 nl yHo` IIJIII'IIIIIIIIIIII/IIIIIIIIIIIIIIIIIITIIIIIIIIIIIIIIIIIII A. V'ANDERVELU. sm STAPUNG MAcHfNE. APPLICATION FLED JULY 26| 1916*. Lgyg, v PatentedSept. 4,1917.

5 SHEETS-'SHEET 5.

UNTER SAF@ FATFN ANTHONY VANDERVELD, OF GRAND RAPIDS, lMICHIGAN.

BELT-STAPLING MACHINE.

Application led July 2G, 1916.

To all whom t may concern Be it known that I, ANTHONY VANDnRvnLD, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Belt- Stapling Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a machine for aiiiXing staples one at a time in an endof a belt, it being the primary object and purpose of the invention to provide a machine oi this character in which a belt may be clamped, staples being fixed in the end of the belt in parallel relation to each other andv spaced apart, the machine including mechanism for moving the clamp holding the belt step by step with each staple iXed in the belt end. A further object of the invention consists in the provision of detachable magazines for the belt staples which may be applied to the machine whereby one machine may be utilized for the various sizes of belt staples, ,it being necessary only to provide a magazine for each of the different sizes of the belt staples. Still further novel features of the invention consist in a belt holding clamp applicable to various thicknesses of belts; in compensating mechanism automatically adjustable with the adjustment of the clamp for regulating the movement of one of the staple driving plungers so that the staples when aiiiXed to a belt, irrespective of its thickness orany irregularities in thickness, bear practically 1 the same relation to each other and tothe belt; in a novel step by step movement for moving the belt holding clamp between each operation of the staple fixing plungers; in novel means for taking a staple from a quantity of staples and moving it into operative position with respect to a belt end and the staple iixing plungers; in a `combined clamp and stop for holding the belt end from lateral spreading as the staples are aiiiXed thereto and for stopping the` mechanism when a suiiicient number of staples have been aiiixed to the belt end; and in many other novel and useful devices and features of construction and operation all of which will appear in detail as the descrip'- tion of the machine embodying my iraien- Specication of Letters Patent.

Patented Sept. 1, 1917.

serial no. 111,471.

tion progresses, reference being had to the accompanying drawings in which Figures 1 and 2 are side elevations from opposite sides of the machine.

` Fig. 3 is a front elevation, a part being broken away to disclose the Vstep by step mechanism for the belt clamp.

, Fig. i is a perspective view of a fragment of the machine illustrating the staple ailining plungers and the mechanism ii'or operating the same.

Fig. 5 is a vertical section .substantially on theline 5 5 of Fig. 3.

Fig. 6 is a plan view oi the machine.

Fig. 7 is a perspective view of the clamp used to hold the belt end from lateral spreading.

Fig. 8 is a plan, with parts broken away and shown in section, of the detachable ple holding magazine.

Fig. 9 is an end view of' the mechanism shown in Fig. 8.

Fig. 10 is a rear elevation of the machine.

Fig. 1.1 is a rear elevation of the belt holding clamp.

Fig. 12 is an end view of the construction shown in Fig. 11.

Fig. 13 is a front elevation of' the upper member of the belt holding clamp. n

Fig. 14- is an end view of the device shown in Fig. 13.

Fig. 15 is a perspective view of the mechanism for operating the belt holdin clamp step by step and of the feed device for taking one staple at a time from the magazine and the mechanism Jfor operating the same.

Fig. 16 is a plan view, Fig. 17 an end view, and Fig. 18 a front elevation of the spring operated follower 'for moving the staple in the magazine into operative position with respect to the feed member.

Fig. 19 is a side elevation of a detail of mechanism preventing the operation of the machine except in one direction.

Fig. 20 is a side elevation from one side, Fig. 21 from the opposite side and Fig. E22 an end view of the feed member.

Like reference characters refer to like parts throughout the several views of the drawings.

The supporting frame of the p machine comprises a base 1 projecting from which is a plate 2 lying lengthwise of the base, while near the front edge of the base a bracket 3 is provided, lying transverselyT of la pawl-like end 19.

and in front of the plate 2 as best shown in Fig. 10. A bracket 4 is also liXed to one side of the plate 2, it supporting one end of a shaft 5 in a suitable bearing, the other end of the shaft extending through an opening in the plate 2. I secure a bushing 51% to the shaft where it passes through the plate to make a greater bearing surface, and to hold cams 101 and 55 from being drawn toward each other and clamping on the side of plate 2 when the crank is secured to the shaft. A crank 6 is secured to one end of the shaft and carries a handle 7 by means of which shaft 5 may be turned.

Between the bracket 4 and the plate 2 a cam 8 is secured on shaft 5 bearing against which is a roller 9 carried at the upper end of the vertical arm 10 of a bell-crank lever pivotally' mounted at 11 near the lower edge j of the plate 2. This bell-crank lever includes a forwardly projecting substantially horizontal arm 12 the forward end of'which lies above and contacts with the lateral arm 13 of a small'bell-crank lever which also includes a short vertical arm 1,4. This bellcrank is pivotally mounted at 15 on the front face of the bracket 3. A lever 16 is pivotally mounted between its ends to the upper end of the vertical arm 14 and has one end turned upwardly and formedV as a pawl 17. Another lever 18 pivotally mounted between its ends on the pivot 15 also has one arm turned upwardly and formed with i Coil springs 2O and 21 connected to the opposite ends of the levers 16 and 1S and to the bracket 3 tend to draw the ends 17l and 19 at all times into engagement with the teeth 22 formed on the lower edge of the lower 'bar 23 of the belt holding clamp. Said bar 23 is slidably mounted in front of the bracket 3, there being a groove 24 formed in the rear side ofthe bar which receives lug 25 on the forward side of the bracket 3. The groove 24 also carries a stop member 26 which coming in contact with the vlug 25 determines the travel of the belt clamp in one direction. A face plate 27 having its top 28 in substantially the same plane 4with the upper edge of bar 23 lies immediately in front of said bar being secured to the base 1 and serving to hold the clamping bar in position. It is apparent that with' each rotation of the shaft 5, cam 8 operates the lever arm 12 in a downward direction the effect of which is to give the lever 16 a lateral movement and as its pawl 17 engages with a tooth 22, this lateral movement moves the bar 23and all partsl connected therewith laterally one step. The lever 18 and its pawl 19 serve as a stop to prevent any return movement ofthe belt clamp, pawl 19 engaging with the teeth 22 and preventing such return movement. I havefonnd when the machine is 'rap'- idly operated there is a tendency foithe clamp to move a little lfarther than is desired under the impulse given to it byk lever 16. Accordingly, a braking member 29 is provided to bear against the forward face of the lower clamping bar 23, spring operated by spring 30 and housed in a housing 31 which is attached as shown in Fig. 5 to the face plate 27. This retards the movement of the belt holding clamp so that it will move no farther than is pushed by the lever 16. i

Coacting with the lower clamp bar 23 is an upper bar 32 lying directly above and parallel thereto. The upper bar is adjustable with respect to the lower bar, post 33 extending upwardly at each end of the lower bar through the ends of the upper bar and threading into nuts 34, each jof which fat its lower end is provided with a collar 35 entering a notch 36 in the'end of the clamping bar 23 as shown. The overhanging projection 37 above each collar 35 4renders the movement of the upper bar with respect to the lower bar a positive one so that on turning thenuts 34 an adjustment of the upper clamp bar with respect to the lower clamp bar is made. In use a belt end isinterposed between the upper and lower clamping bars one edge of the belt being broughty against a stop'38 which at one end is turned upwardly as shown at 39 against which the edge of the belt contacts'. Belts being of varying widths an adjustable side clamp is carried by the upper member 32 to engage with the opposite edge of the belt. This side clamp is formed as a plate 40 lying in front of bar 32 and having a leg 4.1 bent to the rear lying directlyV underneath the lower edge of the bar. The clamp is fixed to the bar by a bolt 42 having a head 43 received within 'the widest portion of a T- slot 44 cut in the front of the bar. A nut 45 is threaded on to the forward end of the bolt there being interposed between this nut and the front face of the plate 40 an operating handle 46 Y which has lips 47 turned against the opposite sides of the nut 45, it being apparent that on turning the handle 46 the nut 45 is also turned to either loosen or fix the head 43 in the T- slot,

whereby the device may be adjusted lengthwise of the upper barv32 and fixed in any desired position thereon'. A leg 48 is' also turned to the rear above the upper edge of the bar 32 a portion of which is cutaway to form a notch 49 as shown in Figf 7, the purpose of which will later appear. i

The clamping bars 23 and are both provided with rearwardlyextending spaced apa rt guides 50 and 51, respectively, the'upper edges of the former lying in the same plane with the upper edge of 'thelower bar 23 while the lower edges of the latter lie in the same plane with the loweil edge the upper' bar 32. The thickness of one guide plus the width of the space between the guides is identical with the movement imparted to the clamp as a whole with each step thereof as heretofore described. lt have provided a scale 52 on the front face of the upper clamp bar 32 which is visible from in front of the machine. `When a belt is clamped in place, by reference to the scale one can be informed immediately how many staples are required for the belt end, and by turning the crank through the number of revolutions indicated by the scale, one can be assured that the proper number of staples have been set in the belt'end. Then the belt is introduced between the lower and upper clamping bars, it is stopped and properly positioned by an upwardly projecting leg 54 formed integral with the horizontal leg 53 on the bracket 3, said horizontal leg serving as a support and bearing for the lower edges of spaced apart guides as best shown in Fig. 2. e

Between the bracket 4 and the plate 2 and closely adjacent the latter is cam 55 fixed on the shaft 5 and serving to operate a lever 56, a roller 57 being mounted on one end of the latter and bearing against ca m 55. Lever 56 is pivotally mounted between its ends at 56a and at its forward end extends below the lower guides 51 and has attached thereto a plunger 58 which on rotation of the cam 56 is adapted to move in an up and.

down direction between a pair of the lower guides 50. A coil spring 59 of considerable strengthis connected at one end of an arm 60 formed integral with the leverV 56 and at its opposite end to the arm 10 of the bellh crank lever first described, the effect of which is to keep rollers 9 and 57 in firm engagement with cams 8 and 55. There is also secured to the shaft 5 on the opposite side of the platea cam 61 operating lever 62. this lever at its rear end carrying roller 63 engaging with cam 61 while at its forward end it extends above the guides 51 heretofore described and is connected to an upper plunger 64 similar to the lower plunger 58 and moving up and down between a pair of guides 51 with the rotation of cam 61. Cams 55 and 61 are so formed that the plungers 58 and 64 move in opposite directions, that is, they either move toward or away from each other and are not moving both in an upward or downward direction at the same time. Lever 62 is pivotally mounted between its ends at 65 to a compensating bar 66 which is pivotally mounted at its rear end at 67 on the supporting plate. 2. The forward end 68 of the compensating bar is reduced in width and enters a horizontal slot 69 out lengthwise in the upper clamping bar 32. It will be apparent that as the upper clamping bar 32 is adjusted to or from the lower clamping member the forward end of the compensating bar 66 is lowered or raised and the pivot 65 correspondingly changes in position so that the downward movement of the plunger 64 with respect to guides 51 is always the same. The plunger 64 is guided in a box 70 and on downward movement works against a coil spring 7l housed in housing 71fL preferably cast integral with plate 2. There is also connected with this plunger a member' 72 which when the leg 48 is moved to come beneath it strikes against the upper side of the leg and stops any further operation of the machine. The notch 49 cut in the leg 48 is necessitated from the design of the machine so as to permit the proper number of staples to be set before the member 72 strikes against the leg 48.

The staples used are of the well known wWebb type formed of wire and including diverging arms at their free ends provided with attaching prongs turned toward each other. For different thickness of belts different sizes of staples are necessary and with my machine it is necessary to provide different siZesof magazines for holding the staples and feed members for taking them one at a time from such magazines. Accordingly, l make the magazine detachable from the machine so that when a particular size of staple is used the magazine holding this particular size may be selected and detachably secured to the machine and used as. long as such size of staples is required. lncluded in the construction of the magazine is abase 74 which is adapted to set into a wide groove 75 shown in Fig. 4 in one side of the supporting plate 2. A pair of notches` 76 are out in the base on its upper and lower sides permitting it to be inserted between the headed pins 78 after which it may be moved forward to the position shown in Fig. 2. Another notch 77 is cut in the upper edge of the base 74 to coact with which a pin 7 9 operated by the spring 80 is used7 this pin being mounted in the bracket 4 and plate 2 as shown in Fig. 6 and movable lengthwise so as to retract when the base is to be put in place returning and seating in the notch 77 to hold the base after it is properly located. A block i1 projects laterally from the forward side of the base 74 to which is secured a rod 82 and a trough-like housing 83 covering the rod and spaced therefrom sufficiently to permit the introduction of the staples 73 between them. The staples may be introduced in any desired manner and moved toward the base 74 by the follower 84 which is formed substantially as a trough and is slidahly mounted between the rod 82 and the housing 83. An arm 85 extends outward from the follower having one end of a coil spring 86 connected thereto, the other end being suitably secured to the base 74. The spring serves to draw the follower against the staples and push thein toward the base as they are taken one at a time. The end of the follower next to the staples is p ro-y vided with projecting ears 87 which extend a distance beyond the sides of the staples to insure their being held up squarely against those preceding.

Ihe staple at the inner end of the bar 82 and housing 83 contacts against a feed ineinber 88 slidably mounted in a T-slot `9,0 inthe base 74 and formed at its forward end with a scat 89 adapted to receive the rear part of a staple, the depth of the seat beino' suoli that one stapley may beI received tierein. The rear portion 91 of the feed slide is reduced in ysize and extends a Adistance back of the base 74. A coil spring 92 surrounds the part y91 and is interposed between ,the rear side of the base and a pin 93 which passes through the feed slidenear its rear end. The coil spring has a tendency to lkeep the slide in rear position so that the stop pin 94 carried by the slide and extending through the slot 95 base 7 4 is normally at the rear end of said slot. It is at this point that a staple 73 may enter the yseat 89 of the feed slide. A spring wire 96 having an @11d 97 turned at rightangles is mounted in a slot 981 in the forward end of the feed slide said end 97 coming just in front of the curved portion of the staple as shown in Fig-21 thereby aiding in holding the staple in position.

A lever 99 is pivotally mounted on the supporting plate 2 and depends therefrom carrying a roller 100 which bears against a cam 101 mounted on the shaft 5. An arm 102- formed integral with the lever 99 projects to the rear and a heavy coiled spring 103 is secured to the end of this arm and to the base 1 forcing the roller 100 strongly against the cam 101. The lower end of lever 99 is formed with afchannel seat 104 in which a pin 105 projecting laterally from the rear end of the feed slide is seated. pin 106 is secured to the base 74 adjacent its forward end and projects into4 the T-slot 90 as shown in Fig.l 15 the purpose of which will later appear. v

In the operation of the machine it lis necessary that the belt clamping device consisting of lower and upper bars 23 and 32 be moved over to the right (referring to Fig. 8) until stopped by the stop 2.6. The pawl 19 normally prevents this movement. lever 107 is pivotally mounted between its ends on the front `face of the bracket 3, being provided with an operating handle 108 and with a rearwardly extending pin 109 which passes over levers 16' and 18 whereby on lifting the end 108 the levers are depressed and disengaged from the teeth 22 permitting the clamp to be moved to termes proper initial position. belt end is then placed above the lower bar 2 3 and the upper bar is adjusted nntil it bears against the upper surface of the belt. lVhen the belt end is placed in the clamp .one edge ofthe belt iS `brought against the part 39. After the belt has been clamped in Iplace the clamp 40 is moved over until the vleg 41 engages with the opposite edge, upon which the machine inay be operated.

The machine is timed so that when the crank is turned in the proper direction, the action of the clamp feed movement takes place while plungers v58 and 64 are out of the guides 50 and 51, lont on reversal of the crank movement, the belt"clainp\ tends to' move while the plungers 58 and 64 are entering or are in the guides 50 and 5,1. A continued rrlevel'lrle,llt 0f the Crank in reverse direction inust distort either theplungers or the guides disabling the machine. The notch 111 (see Fig. 19) is therefore timed to pass the pawl 113 just before a reverse movement is dangerous. The second notch 112 is par in as a .Convenient means .of positioning the crank before starting to lace a beltl The first veffect of turning the shaft 5 in its proper direction is an QPGMJQII of levers 18 and 18 to bring .about a true positioning of the clamp gnides in relation to plunger-s,

there being a possibility of error in the hand return of the clamp, therefore the position of the clamp when stopped by stop 26 is one space back of the first inserting position.- The next is to relieve lever 99 and permit the forward movement of its lower end under the iniiuence of spring 102 where! by slide 88 moves forward carrying a staple 7 3 with it. Sininltanusly with the movement of the slide 88 forward, cams 55 @DQ 61 start the operation of plungers V58 and G4. The arms' of the staple enter between guides 5.0 and 51, one below andthe other above the belt `end and the mechanism is timed so that the staple will be in proper position before the arms thereof are engaged by the plunger-s. `lilith the completion of the movement of `the plnngers toward each other the arms of Ithe staple are bent toward each other and the prongs inserted in the belt, 1fixing the staple rsecurely in the belt. The pin 106 heretofore mentioned serves as a bearing around which the arnis bend. Iniinediately after a staple has been aiiixedto the belt and the plungers moved ont of engagement with the guides 50 and 51, cam 8 again operates levers 1.6 and 18` moving the belt alone' one Sten and into Position to receive the next staple it being understood that previous t'o this movement', `carn 101 has carried lever 9.9 anjd `slide 88 to the rear disengaging the staple from the end 97 of spring 9,6. l/Vith the movement laterally ofthe clamp the staple which has been bent los lio

around the pin 106 is moved and disengaged from pin 106 and the mechanism is in position to repeat the operation which may be indefinitely repeated until the belt has aflixed to it the required number of staples. As such lateral movement of the clamp, the belt secured thereto, and attached staple does not occuruntil after the legs of the staple have been bent toward each other and fixed in the end oi the belt, the staple may freely pass by the guide portions at 90a, being bent suliiciently to clear them. As previously described when a belt has received the required number of staples the part 72 strikes against the leg a8 whereupon further operation of the machine cannot take place.

A machine of the character described is very easily and rapidly operated and aliXes belt staples to the ends of a belt much `more rapidly than has heretofore been possible. rlhis machine is capable of use with practically all thicknesses and widths of 4belts now in use. The staples during the process of ailixing are held by the guides 50 and 51 against any lateral movement and all of the staples lie parallel to each other and to the length of .the belt.` Many changes in con-` structive detail may be resorted to without departing from the invention deiined in the appended claims and accordingly I consider myself entitled t-o all such modications which come within the scope of the claims. I claim 1. In a machine forsetting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means to hold a belt end, means to allix a belt staple to said belt end with the prongs secured in opposite sides oit' the belt and the major portion of the staple extending beyond the belt end, and means to move the holding means step by step laterally to position the belt end for successively receiving the staples. l

2. In a machine .for setting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means to hold a belt end, means for successively afixing belt staples one at a time to said belt end with the rear curved portions of the staples extending beyond the end of the belt, and means to move said holding means step by step between operations of the staple aiiixing means to `properly position the belt end to receive the staples.

3. In a machine for setting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means to hold .a belt end, means for successively aihxing belt staples one at a time to said belt end in parallel relation to each other and with the rear curved portions of the staples extending beyond the end of the belt, and means for successively changing the relative positions of the belt holding means and the staple alixing means whereby the belt may receive the staples in spaced relation to each other.

a. In a machine for setting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means for holding a belt end, and means for successively atlixing staples one at a time to said belt end withthe rear curved portions o the staples projecting beyond the same and spacing them apart in parallel relation to each other throughout the width of said belt end.

5. In a machine for setting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means for holding a belt end, means for movingsaid holding means step by step in a direction transverse to the length of the belt with intervals of time between steps during which the belt holding means and l belt carried thereby are at rest, and means for aiixing staples in parallelism in the belt during said periods of rest, substantially as described. l

6. In a machine for setting belt staples having diverging arms terminating in attaching prongs for engagement with the belt, means to hold a belt end, means to move said belt holding means step by step fin the direction of the width of a belt held by said means, a magazine for holding a quantity of belt staples, means for successively selecting staples from said magazine and moving them into attaching position relative to the belt end with the attaching prongs on opposite sides of the belt, and means for successively attaching said staples to the belt between successive movements oli the holding means.

7. In a machine of the character described, means to hold a belt end, means to move said holding means in the direction of the width of the belt held by said means, a magazine for holding a plurality of staples having diverging arms and attaching prongs on the free ends of said arms, means for successively taking a staple from said magazine and carrying it into position with one arm above and one below the belt end, and means for engaging each arm and pressing it toward the belt end, thereby forcing said prongs into the belt, said last mentioned means operating between each succeeding movement of the holding means.

8. In a machine of the character described, a lower clamping member having a pluralityof spaced apart guides extending rearwardly therefrom, an upper clamping member having similar guides directly above the guides on the lower member, means for adjusting the upper member toward and away from the lower member to thereby clamp a belt end between them, an upper and a lower plunger adapted to enter -between the upper and lower guides respectively, and means to simultaneously operate said plu'n-A gers toward each other, substantially as de'- scribed. e i

9. In a machine of the character described, a lower clainpiiig bar, a plurality of spaced apart guides extending rearwardly therefrom, an upper clamping bar, a plurality ol similar guides e'\"tei`1`ding therefrom directly sively the' spaces between said guides,

liiaefa'ns lor adjusting the upper bar toward' orv away from the lower bar whereby a belt end 10. In a machine of the character described, a lower clampi'i'ig bar', a' pluralityof spaced apart guides extending rearwardly therefrom, an upper clamping bar, a plu-V rality of similar guides yextending therefrom directly above the guides on they lower bar,

be clamped betweenthe bars, anu'pp'er and ai! lower plunger adapted to enter between the upper and lower guides, respectively, means for operating the pluiigers toward each other, said plungers entering they spaces between the guides and stopping in their movements toward each other aty the lower edges ol' the upper guides andupper edges of the lower guides, respectiifely, and

` means forl mounting the operating means for the upper plunger to compensate ifor thev adw justment of said upperI bar and limit the downward movement oit the upper plunger to a point substantially in the plane ol :the

" lower edges ol:l the guides oii said upper bas'r.

In a machine ol' the character de?.4

scribed, a belt clamp comprised or lower and upper bars, means lor adjusting the4 upper bar toward or away from the lower bar, member carried by the lower bar Lagainst which one edge of a beltis adapted to contact, and a member mounted on the upper bar and adjustable lengthwise thereofy for contacting against the opposite edge or the belt, substantially as descrlbed.

"12; In a Kmachine Jol' the character described, a clampfor beltends comprised ol an upper and a lower bar, means for adjusting the upper bar toward or away from' said lower bar, a device secured to the ,lowerbar against which one edge of a belt is adapted to contact, a plate inounted in front of the upper bar, said plate being adj us'tableleiijtliwise l of the'bar, means for securing the jate in any desired position, and a leg bent from the lo'wer .end said plate under the upper bar, substantially as described.

131111 a machine of they character described, means to hold a belt end, means to feed staples having diverging arms and attaching prongs to said belt end with one ariir aloovel and the other below the belt end, and means to bend said arms toward each other to thereby insert the attaching prongs into ttt' but. i .y

la. inachiiieL ol the character described, means' to hold a belt end, means to leed staples' having diverging arms termi-` n'ating in attaching prongs turned toward @ath dother ttv Said belt erta with one' arti above and' the other below tle beltJ end', means to bend said arms towardeachL other thereby inttrtingtue p'r'tngs nittthe belt, and means" to hold the staples againtst lateral movement duriiig said attachment. j

In machine' ot the character described,pmfea1rs`td holda belt end",M and spakzedj guides extending laterally the holding nat-ian-s`"aboveQ and below the plane of the beltend leld tlre'reii'r'A and adapted to receia the arms of attachiirrL staples having divergrng arms termin Yiirg rin attaching prongs; hold theni against lateral movement when said bent toward eaclr other toi at'- 4 i r rn tati; ttt ttt-pitt tty the teit. f

IGI a niachine of'th character de-A scribed; base, plate` extending upwardly therefrom, length-wist tr the tete",- tt bracket secured to thewbase'in liront of'an'd at right angles" to said plate, belt jhfolding device slida'bly mountedllon' -bracl'et lor 1in-love# metalen-twist thereof, meat-t situated- Qn ret the' plate and bracket for moviiig .said deV vi'cfel in one' direction step by step; with inten vals oi' time'betweensteps',- a staple magai zine carried by the means to feed jstaV ples from said magazine one at a time to aj but @nu relai by tara holding device, alla means mounted onl the :plate toJ alliX thej staples to thebelt enclin the intervals' be` tween mov'i'fementsf' of the belt'holdinig device.

I7.' In' a machine el the character described', ay supporting frame including averticalplateand a braclet in ro'nt'ot and at right angles to the plate', "at belt holding cl'ai'np slid ably vIiaounted to move" lengthwise el Athje` bracket, plurality of ratchet teeth. on the clamp) a pawl with .the ratchet teeth', shafttarried by the plate, a cam on the shalt, and mechanism interposed between said cam and j)awl for giving the p awl= a lengthwise movement with eafch revolution of theJ ISit-aft thereby motti-g are tramp one step: with each shaft revolution. j

I8. In a machine" of the character de? scribed, a' support inlc'lu'd'iinlg a vertical plateY and a bracket positioned in front of and at right angles to the plate, a belt holding clamp' slilabl'y Vifno`unte'doli' the' bracket,l up*- per tta rtw-tt revers" maratea Orr the plate;

ret

ric

l Ell posed between said last mentioned cam and.

the clamp for moving it lengthwise of the bracket step by step with each revolution of the shaft, substantially as described.

19. In a machine of the character described, a support including a vertical plate and a bracket positioned in front of and at right angles to the plate, a lower clamping bar slidably mounted on the bracket, an upper clamping bar mounted for adjustment toward or away from the lower bar, said upper bar having a groove cut lengthwise thereof in its rear side, a bar pivotally mounted at one end on the plate and having its other end entered into said groove, an upper lever pivotally mounted between its ends on the bar, an upper plunger carried by the forward end of said lever, spaced guides on the upper clamping bar between which the plunger is adapted to pass, a lower lever pivotally mounted between its ends on the plate, a lower plunger connected at the forward end of the lower lever, spaced guides on the lower clamping bar between which said lower plunger is adapted to pass, a shaft, cams on the shaft having operative engagement with said upper and lower levers whereby said plungers are moved toward each other with each revolution of the shaft, and means interposed between the shaft and clamping bars for moving them step by step lengthwise of the bracket, one step with each revolution of the shaft to thereby locate the clamping bars for the plungers to pass between successive pairs of guides on the clamping bars.

20. In a machine of the character described` a support including a vertical plate and a lbracket in front of and located at right angles to the plate, a belt holding clamp slidably mounted to move lengthwise of the bracket, a plurality of ratchet teeth on the lower edge of the clamp, a bell-crank lever having a vertical and a horizontal arm and pivotally mounted on the face of the bracket below the clamp, a second bell-crank lever mounted on the plate and also having a vertical and horizontal arm, said horizontal arm lying above and engaging at its end with the horizontal arm of the first bellcrank lever, a shaft supported by the plate, a cam thereon engaging with and operating the vertical arm of the second bell-crank lever, and a pawl carried by the vertical arm of the first bell-crank lever to engage with said ratchet teeth, substantially as described.

21. In a machine of the character described, a support including a vertical plate and a bracket positioned in front of and at right` angles to the plate, a belt clamp mounted to move lengthwise of the plate, a

plurality of ratchet teeth on the lower edge i of the clamp, a bell-crank lever having a vertical and a horizontal arm pivotally mounted on the bracket below the clamp, a pawl pivotally mounted on the vertical arm of said lever, means causing said pawl to engage with the ratchet teeth, a stop pawl pivotally mounted on the pivot of the bellcrank lever', means to cause said stop pawl to engage with the ratchet teeth, means for periodically depressing the horizontal arm of the bell-crank lever, a member pivotally mounted between its ends on the bracket, and a pin on one end of said member extending over both pawls, substantially as described.

22. In a machine of the character described, means to hold abelt end, means to periodically move said belt holding means step by step in the direction of the width of a belt held by said means, a magazine supported back of the belt holding means and including a base and a housing for the reception of a plurality of belt staples, a feed member slidably mounted in the base, means for periodically operating the feed member to take one staple from the housing and move it into attaching position relative to the belt, and means for attaching said staples to the belt end as they are brought successively into position by the feed member.

n a machine of the character described, a support, a belt holding device movably mounted on the support, a shaft on the support, a cam on the shaft, means operated by the cam and operatively associated with the belt holding device for moving it step by step, one step with each revolution of the shaft, a base on the support a feed member slidably mounted in said base, a second cam on the shaft, means operated by said second cam for moving the feed member in one direction, means for operating said feed member in the opposite direction, the arrangement being such that said member makes one complete reciprocation with each revolution of the shaft, a housing for containing a quantity of belt staples secured to the base, means for forcing said staples against the feed member so that a staple is taken thereby and carried to a belt end held by the belt holding` means with each revolution of the shaft, and means to affix the staples in said belt end.

24. ln a machine of the character de-v scribed, a support, a shaft carried thereby, a cam on the shaft, a lever pivotally suspended from the support, a roller on the lever bearing against the cam, an arm on the lever, a coil spring attached to the arm liti for forcing the roller against the o, l, Staple inagaine comprised of aJ base attached to the Support and a hosng for staples projecting therefrom, a feed rner'- ber slda'bljf mounted in the base, irezi forcing the staples agztinst the feed ber, and operative connections betneen in end of the feed member and the lovr eld; of said lever. y n W y 25. In if machine of the character der` scribed, a Supporting frame, zt belt clap Sldably mounted on tlle frame, va'`n'1a"gtzlfie for holding' a' qu'antty of belt staples d- `tothe frzune, at feed lnernbel; for taking @ne staple at a time freni Said quzzintltjf orstapleS arryng tto a belt end bfell S'tid olznp7 pper and lower plungerf for ailxg the stlples n the belt end, and means for `operating the plungers and feed I'em'br and for I'novng theA belt olfnp' stelliby step in the direction of the fxdth of the belt to' thereby aflx Staples in tlfe end in, Spaoed apart relzton, 

